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First of all i have to mention the usb on this thing, it is the COOLEST thing since wifi!!! the usb is a sliver in the center of the rectangle plug, like a blade, so it can be put in the usb port either way!!! no more always putting the dam thing in the wrong way lol besides that this thing is seriously amazing, when u plug it in it goes through a subtle boot process, then like the pictures show it shows just about every bit of information you can gather from a usb charger, it blows my mind this can all be done in such a small package n for so cheap. soo worth the little bit of money n honestly id recommend getting 2 so u only have to pay for shipping once lol
Verified purchase: Yes | Condition: New
Useful for checking output voltage from a USB port, and can measure current drawn by device connected to its USB output. However, there are NO instructions supplied, and the tester toggles from the default Voltage-and-Current display to 2 other displays that lack explanation. My guess it that it can test the capacity of a 5 Volt battery supply, but I haven't experimented with that. The device also seems to require a button push before the output connector is active, when you would think that would always be "On". Also, the unit seems to disconnect before fully charging a connected phone or other device. Again, there may be a reason but without instructions I can't determine a reason. All in all, a well-made tester at a good price. I would rate 4 or 5 stars if the manufacturer bothered to provide an instruction sheet.Read full review
Verified purchase: Yes | Condition: New
I received it yesterday and immediately test in on standard USB. Work good and the screen show all the data in contrast and good. I cannot check the accuracy of the item but it seems to work correct. I have tested in Quick Charge 3 with a phone the voltage was correct too. Unfortunately I have no success with measure of Apple voltage range on my Macbook Pro with touchbar and Makbook 12 too. Somehow the max voltage is 5 v only. It seems that the dongle not enough "transparent" for Apple. And the laptop can charge only in standard mode with 5V/3A. So I will recommend if you will not use this on Apple.
Verified purchase: Yes | Condition: Pre-owned
This is great for diagnostics testing of power and volage provided from the outlet as well as requested from the load of the device or circuit . I am making some simple adapters to monitor the activity of other devices and projects. I am quite sure that I can find many more uses for this amazing tool.. I will be getting more of these as my projects become more profitable. It's like having a scope in your pocket. Thank you for offering this fine diagnostics tool for this great price. Paul M.
Verified purchase: Yes | Condition: Pre-owned
It is as described, but the USB part that sticks out (male connector) can be easily bent -mych easier than what I am used to with USB flash drives (probably fixation to the board is only by soldered pins). I think I will soon break it and will have to repair it. Otherwise I am more than satisfied.
Verified purchase: Yes | Condition: New
